Source Locations of Coronal Mass Ejections and the Large-Scale Solar Magnetic Field

该项目将研究和分类与日冕物质抛射(CME)有关的全球太阳场的大尺度重构的种类。日冕物质抛射包括日冕的大规模重组和向日光层喷射大量质量和能量。然而，我们对日冕物质抛射如何或在哪里产生或如何发展知之甚少，因此重要的是要了解它们与太阳表面附近和低日冕中的大尺度磁场模式的关系。我们提出了一个分两部分的方法来解决这个问题。首先，我们将研究SkyLab和SMM日冕物质抛射的来源位置，通过将它们映射到每次太阳自转的天气图上来确定。这样的地图现在可以追踪从光球层到色球层，再到日冕的大规模全球磁场。当按时间序列叠加时，这类地图揭示了场的收敛、发散和剪切的大尺度模式。第二，这些日冕物质抛射的位置将与白光天气图和每日日冕图像进行比较，以确定日冕物质抛射与先前存在的日冕流光的关系。该项目将增进我们对太阳活动的物理学，特别是日冕的结构和演化、日冕的结构和演化以及大规模扰动在日光层的传播的了解。

This project will study and classify the kinds of large-scale restructuring of the global solar field which are related to Coronal Mass Ejections (CMEs). CMEs involve large-scale restructuring of the corona and the ejection of large amounts of mass and energy into the heliosphere. However, we know very little about how or where CMEs originate or how they develop, so it is important to understand their relationship to the large-scale magnetic fields patterns near the solar surface and in the low corona. We propose a two-part approach to this problem. First, we will study the source locations of Skylab and SMM CMEs determined by mapping them onto synoptic maps for each solar rotation. Such maps are now available tracing the large-scale global magnetic fields from the photosphere, through the chromosphere, and into the corona. When stacked in time-series, such maps reveal large-scale patters of convergence, divergence and shear of the fields. Second, the locations of these CMEs will be compared with white light synoptic maps and daily coronagraphic images to determine the relationship of CMEs to preexisting coronal streamers. This project will enhance our understanding of the physics of solar activity, especially CMEs, of the structure and evolution of the corona, and or the propagation of large-scale disturbances through the heliosphere.